The Straight Power 11 550W 80 Plus Gold Modular Power Supply from be quiet! features a 135mm cooling fan and four high-performance 12V rails. This 8-cables modular power supply has a 20+4-pin ATX motherboard connector, two 6+2-pin PCIe connectors, a P4+4 connector, nine 5-pin SATA connectors, and three 4-pin P-ATA connectors. 550W is supported with a peak power of 600W. It has ATX 12V 2.4 and EPS 12V 2.92 compliance.